Bauer, Wolfgang. China and the Search for Happiness: Recurring Themes in Four Thousand Years of Chinese Cultural History. New York: Seabury Press, 1976.

Bing Su and Li Jin, 2001. “Origins and Prehistoric Migrations of Modern Humans in East Asia.” In Genetic, Linguistic and Archaeological Perspectives on Human Diversity in Southeast Asia. (Singapore: World Scientific Publishing.), 107–32

Curtin, Philip D. Cross-cultural trade in World History. Cambridge: Cambridge University Press, 1984.

de Groot, J.J.M. The Religious System of China, Vol. 5. Leiden: Brill, 1907.

Deng, Shuping. “Three Origins of Jade Culture in Ancient China” Colloquy on Ancient Chinese Jades Sponsored by the University of London, July 1995.

de Silva, C. R. “The Portuguese Impact on the Production and Trade in Sri Lanka Cinnamon in Asia in the Sixteenth and Seventeenth Centuries,” Spices in the Indian Ocean World, Vol, 2, An Expanding World, ed M. N. Pearson (Variorum, 1996)

Dubs, Homer H. (trans.) The History of the Former Han Dynasty by Ban Gu. Vol. 3 Baltimore: Waverly Press, 1955.

__________. The Bronze Age and Early Iron Age Peoples of Eastern Central Asia. Pennslyvania: The Institute for the Study of Man in Collaboration with The University of Pennsylvania Museum Publications, 1998.

__________.“The North(west)ern Peoples and the Recurrent Origins of the ‘Chinese’ State,” in The Teleology of the Modern Nation-State: Japan and China, ed. Joshua A. Fogel (Philadelphia: University of Pennsylvania Press, 2005a.), 46–84.